kingdom of priests. Not the genitive of character (App-17), which would be priestly kingdom. But by the Figure of speech Antiptosis (App-6). "a royal priesthood", as explained in 1 Peter 2:9. The whole nation being. priest with respect to other nations, as the tribe of Levi for Israel. Now in abeyance, because Israel did not fulfil the condition in Exodus 19:5. But in the future it will be realised (Isaiah 61:6; Isaiah 66:21).
Related Commentaries of Exodus 19:6
Exodus 19:6
6 And ye shall be unto me a kingdom of priests, and an holy nation. These are the words which thou shalt speak unto the children of Israel.